Not a lecture, but check out the Lexis "Understanding" series of supplement books. Property was the first class I ever used one of these books for, and I CALI'd it! They have it on Amazon here, but I'm guessing most law libraries would have it too.
This is useful for present estates and future interests. If you like the free videos, Studicata's LEAP is only $8 a month.
This is a good intro to takings but it's probably too shallow for use in your class.